package com.heima.admin.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.admin.mapper.AdUserMapper;
import com.heima.admin.service.AdUserService;
import com.heima.common.exception.CustException;
import com.heima.model.admin.dtos.AdUserDTO;
import com.heima.model.admin.pojos.AdUser;
import com.heima.model.admin.vos.AdUserVO;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.utils.common.AppJwtUtil;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Service
public class AdUserServiceImpl extends ServiceImpl<AdUserMapper, AdUser> implements AdUserService {
    @Override
    public ResponseResult login(AdUserDTO dto) {
        //1.校验参数
        String name = dto.getName();
        String password = dto.getPassword();
        if (StringUtils.isBlank(name) || StringUtils.isBlank(password)){
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"用户名或密码不能为空");
        }
        //2.根据用户名查询用户信息
        AdUser user = this.getOne(Wrappers.<AdUser>lambdaQuery().eq(AdUser::getName, name));
        if (user == null){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"用户不存在");
        }
        //3.对比输入的密码 和 数据库中的密码是否一致，MD5（密码 + salt）
        String intPwd = DigestUtils.md5DigestAsHex((password + user.getSalt()).getBytes());
        if (!intPwd.equals(user.getPassword())){
            CustException.cust(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR,"密码错误");
        }
        //4.判断用户状态是否正常（0：暂时不可用、1：永久不可用、9：正常可用）
        if (user.getStatus() != 9){
            CustException.cust(AppHttpCodeEnum.LOGIN_STATUS_ERROR,"该账户不可用，请联系客服处理");
        }
        //5.重新设置loginTime时间
        user.setLoginTime(new Date());
        this.updateById(user);
        //6.颁发token 返回结果{token：，user：}
        String token = AppJwtUtil.getToken(Long.valueOf(user.getId()));
        AdUserVO adUserVO = new AdUserVO();
        BeanUtils.copyProperties(user,adUserVO);
        Map result = new HashMap<>();
        result.put("token",token);
        result.put("user", adUserVO);
        return ResponseResult.okResult(result);
    }
}
